[sr-dev] git:master:887278c5: core: xavp - helper function to serialize subfields in a params list

Module: kamailio Branch: master Commit: 887278c5254e35ac1a617e5fc68347829d0ac185 URL: https://github.com/kamailio/kamailio/commit/887278c5254e35ac1a617e5fc683478… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2018-04-20T11:58:20+02:00 core: xavp - helper function to serialize subfields in a params list --- Modified: src/core/xavp.c Modified: src/core/xavp.h --- Diff: https://github.com/kamailio/kamailio/commit/887278c5254e35ac1a617e5fc683478… Patch: https://github.com/kamailio/kamailio/commit/887278c5254e35ac1a617e5fc683478… --- diff --git a/src/core/xavp.c b/src/core/xavp.c index 27a200fbfb..c9529a02f6 100644 --- a/src/core/xavp.c +++ b/src/core/xavp.c @@ -843,4 +843,65 @@ sr_xavp_t* xavp_get_child_with_sval(str *rname, str *cname) return vavp; } + + +/** + * serialize the values in subfields of an xavp in name=value; format + * - rname - name of the root list xavp + * - obuf - buffer were to write the output + * - olen - the size of obuf + * return: 0 - not found; -1 - error; >0 - length of output + */ + +int xavp_serialize_fields(str *rname, char *obuf, int olen) +{ + sr_xavp_t *ravp = NULL; + sr_xavp_t *avp = NULL; + str ostr; + int rlen; + + ravp = xavp_get(rname, NULL); + if(ravp==NULL || ravp->val.type!=SR_XTYPE_XAVP) { + /* not found or not holding subfields */ + return 0; + } + + rlen = 0; + ostr.s = obuf; + avp = ravp->val.v.xavp; + while(avp) { + switch(avp->val.type) { + case SR_XTYPE_INT: + LM_DBG(" XAVP int value: %d\n", avp->val.v.i); + ostr.len = snprintf(ostr.s, olen-rlen, "%.*s=%u;", + avp->name.len, avp->name.s, (unsigned int)avp->val.v.i); + if(ostr.len<=0 || ostr.len>=olen-rlen) { + LM_ERR("failed to serialize int value (%d/%d\n", + ostr.len, olen-rlen); + return -1; + } + break; + case SR_XTYPE_STR: + LM_DBG(" XAVP str value: %s\n", avp->val.v.s.s); + ostr.len = snprintf(ostr.s, olen-rlen, "%.*s=%.*s;", + avp->name.len, avp->name.s, + avp->val.v.s.len, avp->val.v.s.s); + if(ostr.len<=0 || ostr.len>=olen-rlen) { + LM_ERR("failed to serialize int value (%d/%d\n", + ostr.len, olen-rlen); + return -1; + } + break; + default: + LM_DBG("skipping value type: %d\n", avp->val.type); + ostr.len = 0; + } + if(ostr.len>0) { + ostr.s += ostr.len; + rlen += ostr.len; + } + avp = avp->next; + } + return rlen; +} #endif diff --git a/src/core/xavp.h b/src/core/xavp.h index 42413e70b7..8014bc5694 100644 --- a/src/core/xavp.h +++ b/src/core/xavp.h @@ -101,6 +101,8 @@ sr_xavp_t *xavp_clone_level_nodata(sr_xavp_t *xold); sr_xavp_t* xavp_get_child(str *rname, str *cname); sr_xavp_t* xavp_get_child_with_ival(str *rname, str *cname); sr_xavp_t* xavp_get_child_with_sval(str *rname, str *cname); +int xavp_serialize_fields(str *rname, char *obuf, int olen); + #endif #endif